JPH0221466Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a weighing device.

Ingredients such as wild vegetables, tsukudani, pickles, and chirashi sushi that are packaged in bags, bottles, or other containers are products that are particularly difficult to measure automatically, and many of these items are weighed manually. Recently, automatic weighing equipment for this purpose has been devised, but sufficient results have not been achieved due to large variations in accuracy.

The present invention has been devised and developed in view of the above points, and its characteristics are that the reduced diameter part of the funnel-shaped hopper is arranged in the downward direction, and a measuring screw is provided inside. The measuring screw shaft is caused to rotate by a drive means, and the measuring screw is controlled to rotate as appropriate by a pulse measuring device or a timer means, and the measuring screw is caused to perform the measurement by the rotation. The material to be filled in the hopper is compressed and metered extruded to the cup, and the lower part of the hopper is made larger in diameter than the inner diameter of the hopper's reduced diameter part, and a through hole with a key having an L-shaped cross section is bored at the upper edge. A plurality of measuring cups each having a diameter equal to or larger than that of the hopper diameter reduction part and having collar pieces of different widths are mounted on the fixed plate so as to be horizontally slidable on the fixed plate. The extrusion cylinder is provided so as to be removably inserted into the through hole, and an extrusion cylinder is provided facing downward at a position perpendicular to the sliding surface and adjacent to the hopper. A dish plate is attached to the measuring cup, and the material to be filled in the measuring cup is pushed out from above in conjunction with the sliding movement of the surface plate.

An example of implementing the present invention will be described below based on the drawings.

Reference numeral 1 denotes a hopper into which the material to be filled for weighing is placed, and a screw 2 for weighing is provided inside the hopper. The metering screw 2 is rotated by rotating a support shaft 5 via a timing belt 4 driven by a motor 3 with a clutch brake. Reference numeral 6 denotes a stirring blade, and its rotation is performed by rotating the tube shaft 8 via the intermediate gears 9 and 10 and the gear 11 by the drive of a separate geared motor 7 on the outer periphery of the support shaft 5. At this time, 12 is a clutch for intermittent rotation.

In the present invention, the hopper 1 is installed in a rigid shape with a funnel-shaped reduced diameter part facing downward, and a surface plate 14 as shown in FIG. The cylinders 15 are connected to each other so that they can be reciprocated in the horizontal direction by the operation of the cylinder 15. A through hole 17 having a diameter larger than the reduced diameter portion R of the hopper 1 is bored in the surface plate 14, and the through hole has an inner diameter r, r as shown in FIGS. 3A and B. The different cups 18, 18'... are designed to be removably fitted together. S is a key with an L-shaped cross section provided at the periphery of the through hole 17 on the side of the surface plate 14 in order to make the above-mentioned fitting convenient. Flange pieces p, p', . . . of different widths are provided to enable engagement with the key S.

Reference numeral 19 denotes an extrusion cylinder that is adjacent to the hopper 1 and is disposed above the extension of the surface plate 14 that is extruded by the fluid cylinder 15, and is disposed so that the piston rod 20 faces downward. A dish plate 21 is attached to its lower end. This plate plate should be replaced as appropriate with one having the same inner diameter as the inner diameter dimensions r, r'... of the measuring cups 18, 18'... used to fit into the through holes 17 of the surface plate 14. It makes me angry.

In addition, in the drawing, 22 is a funnel, and 23 is a bag.
4 is a fixed plate on which the surface plate 14 is slid. Also,
25 is a disc integrally attached to the support shaft 5, 26
is a pulse measuring device that measures the rotation of the disc 25 using pulses, and is electrically controlled to stop the drive of the motor 3 when the spindle 5 rotates at a constant rate.

Next, the effect will be explained.

Into the hopper 1 are loaded materials f such as wild vegetables, tsukudani, pickles, and sushi ingredients. On the other hand, a measuring cup 18 having an inner diameter that allows the desired amount to be measured is fitted into the through hole 17 of the surface plate 14, and is aligned with the lower outlet end of the hopper 1 on the surface plate 14. It is arranged like this.

In the above state, the stirring blade 6 is rotated by the drive of the geared motor 7, but in order to perform metered filling now, the motor 3 must be rotated a certain number of times determined empirically. The rotations are counted by a pulse measuring device, and the drive of the motor 3 is stopped at the required number of rotations. That is, in the present invention, the measuring screw 2 presses and fills the material in the hopper 1 into the measuring cup 18 from the contraction part R by rotating the support shaft 5 driven by the motor 3.

When filling is completed and the metering screw 2 stops rotating, the fluid cylinder 15 is activated to push out the surface plate 14 in the direction of arrow A, so that the surface plate 14 slides on the fixed plate 24. It moves and is pushed forward, and is stopped at a position below the pushing cylinder 19 provided adjacent to the hopper 1.
(See FIG. 4A) During this movement, the material to be filled in the measuring cup 18 is filled in a compressed state, so that it does not fall by itself. Next, the cylinder 19
When the measuring cup 18 is stopped, the extrusion cylinder 19 is operated, and the tray plate 21 is vertically lowered to press the filling material in the measuring cup 18 from above to below and cause it to fall. Accordingly, the material to be filled is thrown into the bag 23 through the funnel 22. (See Fig. 4B) When the material to be filled in the measuring cup 18 falls, the dish plate of the extrusion cylinder 19 is raised, and subsequently, the other cylinder 15 is operated in the opposite direction and the surface plate 14 in the direction of arrow B,
When the measuring cup 18 in the surface plate 14 reaches a position below the reduced diameter portion R of the hopper 1, it is stopped. These movements and stops are automatically performed using a limit switch or a phototube switch (not shown).

The above is an explanation of one process of weighing and filling, but the process is repeated continuously in the same way.

In the above explanation, filling of the filling material into the measuring cup 18 is performed by measuring the rotational speed of the spindle, that is, the measuring screw 2, using the pulse measuring device 26. It's okay if it's something.

The present invention is constructed as described above, and it is possible to efficiently carry out automatic continuous work using a measuring machine to input food such as wild vegetables, tsukudani, pickles, and sushi ingredients, which had previously been done exclusively by hand. It is possible to make a significant contribution to productivity improvement and cost reduction.

[Brief explanation of the drawing]

1 is a schematic vertical sectional view of the apparatus, FIG. 2 is a perspective view of parts of the surface plate, FIGS. 3A and 3B are perspective views of parts of the measuring cup, and FIGS. 4A and 4B are explanatory views of the operation. 1...Hopper, 2...Measuring screw, 3
... Motor, 5 ... Support shaft, 6 ... Stirring blade, 1
4...Surface plate, 15...Fluid cylinder, 16...
Piston rod, 18, 18'...Measuring cup, 19
... Extrusion cylinder, 20 ... Piston rod, 2
1...Dish plate, 25...Disk, 26...Pulse measuring device.

Claims (1)

[Scope of utility model registration request] A funnel-shaped hopper is disposed in the rigid direction with the reduced diameter part facing downward, a measuring screw is provided inside, the measuring screw shaft is rotated by a driving means, and a pulse measuring device is provided. The rotation of the metering screw is appropriately controlled by a timer means or the like, and by this rotation, the filling material in the hopper is compressed and metered out to the metering cup. In addition to making the hopper diameter larger than the inner diameter of the reduced diameter part, a surface plate with a transparent hole having an L-shaped cross-section key on the upper edge is provided so as to be able to slide horizontally on the fixed plate. A plurality of measuring cups each having a diameter equal to or larger than that of the reduced diameter portion of the hopper are removably installed in the through hole, and the measuring cup is provided above the sliding surface perpendicularly to the hopper. An extrusion cylinder is arranged facing downward in an adjacent position, and a dish plate having the same horizontal cross-sectional shape as the measuring cup is attached to the end of the piston rod. A measuring device characterized in that it is configured to be extruded from above.